20051888

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{4993}}^1$

素因数の和:5252

約数の個数: 20

約数和(自身を含む): 39013128

約数和(自身を除く): 18961240

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 4993, 9986, 19972, 39944, 79888, 1253243, 2506486, 5012972, 10025944, 20051888]

約数ペア:

[(1, 20051888), (2, 10025944), (4, 5012972), (8, 2506486), (16, 1253243), (251, 79888), (502, 39944), (1004, 19972), (2008, 9986), (4016, 4993)]